Definition

A Facebook feature that lets you send a cryptic, low-commitment notification to someone without actually saying anything—the digital equivalent of awkwardly waving at someone from across the room. It screams "I want your attention but I'm too anxious to actually message you."

Example Usage

I've been poke-warring with my crush for three days because neither of us is brave enough to actually text.

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=poke&defid=2387822)